在基于Mesh-under的IPv6低功耗无线个域网(IPv6over low-power wireless personal area networks,6LoWPAN)中,针对传输路径上中间节点重传缓存溢出导致重传数据分片丢失,造成网络性能下降等问题,提出一种基于Mesh-under的备用缓存机制...在基于Mesh-under的IPv6低功耗无线个域网(IPv6over low-power wireless personal area networks,6LoWPAN)中,针对传输路径上中间节点重传缓存溢出导致重传数据分片丢失,造成网络性能下降等问题,提出一种基于Mesh-under的备用缓存机制。本文所提机制根据传输路径上各节点重传缓存使用情况及数据分片剩余跳数等信息,设置动态重传缓存门限,并为超过该门限的节点从其邻居节点中挑选合适的备用缓存节点,从而完成数据分片的缓存与重传过程,达到均衡使用各节点重传缓存的目的。结果表明,所提机制能够有效避免重传缓存溢出,减小网络能耗,同时进一步提高目的端重组成功率。展开更多
Introduction: Prostate cancer is the most common non-cutaneous male cancers, contributing to significant mortality rates globally. Mutations of RNase L, an enzyme involved in inflammatory and immunological pathways, h...Introduction: Prostate cancer is the most common non-cutaneous male cancers, contributing to significant mortality rates globally. Mutations of RNase L, an enzyme involved in inflammatory and immunological pathways, have been speculated to predispose to cancer. This study assesses three different mutations of the RNase L gene in Irish prostate cancer patients, including one linked with general cancer susceptibility never investigated before in prostate cancer (rs3738579), and reports on links with aggressive cancer. Methods: 134 patients had their RNase L mutation status determined by polymerase chain reaction (PCR) of serum DNA. Complementary clinical details for each patient are statistically analysed. Results: No link to age of diagnosis, high grade disease or prostate specific antigen (PSA) level at diagnosis was demonstrated with any of the studied single nucleotide polymorphisms (SNP). The SNP variation was consistent with that of published international series. Conclusion: SNP genotypic frequencies in Ireland are consistent with international findings. The studied RNase L mutations including rs3738579 do not appear to have a significant impact on our patient population.展开更多
最近，DEC中恒针对中高端MP3市场推出了街舞系列的最新产品街舞M560R。此款街舞M560R最吸引眼球的亮点就是在功能设计方面的突破，其特别嵌入了PC NET PC软件，用户只要通过一根USB线连接MP3与主机，进行软件注册之后，便可以实现远程控...最近，DEC中恒针对中高端MP3市场推出了街舞系列的最新产品街舞M560R。此款街舞M560R最吸引眼球的亮点就是在功能设计方面的突破，其特别嵌入了PC NET PC软件，用户只要通过一根USB线连接MP3与主机，进行软件注册之后，便可以实现远程控制PC。此外，这款MP3还内置了扬声器，最大音量可使2平方米内的人清晰的听到音乐而不失真，更突出了街舞一向酷炫的特色。展开更多
文摘在基于Mesh-under的IPv6低功耗无线个域网(IPv6over low-power wireless personal area networks,6LoWPAN)中,针对传输路径上中间节点重传缓存溢出导致重传数据分片丢失,造成网络性能下降等问题,提出一种基于Mesh-under的备用缓存机制。本文所提机制根据传输路径上各节点重传缓存使用情况及数据分片剩余跳数等信息,设置动态重传缓存门限,并为超过该门限的节点从其邻居节点中挑选合适的备用缓存节点,从而完成数据分片的缓存与重传过程,达到均衡使用各节点重传缓存的目的。结果表明,所提机制能够有效避免重传缓存溢出,减小网络能耗,同时进一步提高目的端重组成功率。
文摘Introduction: Prostate cancer is the most common non-cutaneous male cancers, contributing to significant mortality rates globally. Mutations of RNase L, an enzyme involved in inflammatory and immunological pathways, have been speculated to predispose to cancer. This study assesses three different mutations of the RNase L gene in Irish prostate cancer patients, including one linked with general cancer susceptibility never investigated before in prostate cancer (rs3738579), and reports on links with aggressive cancer. Methods: 134 patients had their RNase L mutation status determined by polymerase chain reaction (PCR) of serum DNA. Complementary clinical details for each patient are statistically analysed. Results: No link to age of diagnosis, high grade disease or prostate specific antigen (PSA) level at diagnosis was demonstrated with any of the studied single nucleotide polymorphisms (SNP). The SNP variation was consistent with that of published international series. Conclusion: SNP genotypic frequencies in Ireland are consistent with international findings. The studied RNase L mutations including rs3738579 do not appear to have a significant impact on our patient population.
文摘最近，DEC中恒针对中高端MP3市场推出了街舞系列的最新产品街舞M560R。此款街舞M560R最吸引眼球的亮点就是在功能设计方面的突破，其特别嵌入了PC NET PC软件，用户只要通过一根USB线连接MP3与主机，进行软件注册之后，便可以实现远程控制PC。此外，这款MP3还内置了扬声器，最大音量可使2平方米内的人清晰的听到音乐而不失真，更突出了街舞一向酷炫的特色。
